Distortion of V z+O n coordination polyhedra and parameters of the bond valence model for V-O bonds in inorganic crystals

被引：5
|
作者：
Urusov, V. S. [1 ]
Serezhkin, V. N. [2 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119992, Russia
[2] Samara State Univ, Samara 443011, Russia
来源：
CRYSTALLOGRAPHY REPORTS | 2009年 / 54卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
91.65.An; 61.66.-f;
D O I：
10.1134/S1063774509020059
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The dependences of average V-O distances in inorganic compounds of vanadium of different valence on the degree of distortion of coordination polyhedra have been obtained by careful statistical treatment of modern structural data banks. Values of bond lengths in undistorted (regular) polyhedra are recommended. Theoretical analysis of the statistical data made it possible to calculate the most likely values of the parameters of the bond valence model: the interatomic distance for the single (two-electron) bond, corresponding to the single valence, and the bond softness parameter. Calculations of the sums of bond valences for some complicated cases (different coordination numbers, mixed vanadium valence) confirmed reliability of the recommended parameters.
引用
收藏
页码：190 / 194
页数：5
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